在山上用in还是on野餐用on the hills 还是 in the hills

在山上用in还是on野餐用on the hills 还是 in the hills in the space station还是on the space station在太空站用in还是on on还是in the football field..在足球场上踢足球用on还是in? on the sofa还是in the sofa on the bed还是in the bed on the chair还是in the chairon the sofa还是in the sofa on the bed还是in the bed on the chair还是in the chair?急!~~~在什么情况下用in什么情况下用on呢?请高人指点啊·· 在电脑上看电影 用in还是on the computer 在街上用in还是on the street, fly on the 是用on还是用in? walk on the street还是用in? 用in还是on （ ）the right in the town还是on in还是on the blackboard in还是on the newspaper in the photos 还是on? 是英语的“英语书在书架上”是用“on”还是“in”?如“on the” ,“in the” 在床上是in the bed 还是on the bed 在网上是on the Internet还是in the Internet. 在门上是on the door还是in the door? 在电视上看是on the TV还是in the TV?